THE DYNAMICS OF ENDOGENOUS BACTERIAL NITRITE FORMATION IN THE STOMACH .1. COMMUNICATION - FOLLOW-UP STUDIES IN HUMANS UNDER NATURAL CONDITIONS

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  • 1 January 1984
    • journal article
    • research article
    • Vol. 179  (5) , 381-396
Abstract
The fasting gastric secretion was analyzed bacteriologically and chemically in 15 young, voluntary test subjects with histories of a healthy stomach; physiological gastric secretion tests (basal acid output, peak acid output) were made at regular intervals of 2 and 4 wk over a period of 3 and 6 mo. Of the persons studied 2/3 showed, during the entire period of examination, the same pH values with tolerable variations and, as a result, the same order of magnitude for the total germ count, the colony count of nitrite-forming bacteria and the NO2- concentration. Thus, depending on the acidity of the individual stomach, there is an autonomous bacterial flora which remains unaltered in quality and quantity. Of the test persons, 1/3 showed occasional major variations of the pH values. This invariably led to corresponding changes in the bacteriological and chemical parameters. For requirements imposed by preventive medicine and hygiene, in the future, greater attention must be paid to the bacterial flora of the intact stomach, while making due allowance for endogenous nitrite formation.

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